The above video outlines how to solve stoichiometry problems of several types (molar concentration, concentration of ions, mass percent, minimum volume needed & finding the mass of a precipitate). Although the video above is long, it is the exact same process learned last unit. You may wish to give students 2 days to review the video (ask them to review the first 3 examples on one day and the last 2 examples on the second day). However, little of the material is brand new.
Students should be asked to watch the above video at home (if they don't have access the video should be available for them to watch in class). Students will then come to class and divide themselves into their level of understanding (really understand, somewhat understand, don't understand and haven't watched video). The students will be given problems to solve in their groups (depending on their understanding) and the teacher can circulate and help the students.
Challenge questions should be provided to students who have mastered this material. Extra questions for basic understanding can be taken from the students' text book to help the group of students struggling, in addition to support from the teacher.
Curriculum Expectations: 2.1 Use appropriate terminology related to aqueous solutions and solubility 2.5 Write balanced net ionic equations to represent precipitation and neutralization reactions 2.6 Use stoichiometry to solve problems involving solutions and solubility 3.4 Identify, using a solubility table, the formation of precipitates in aqueous solutions
The above video outlines how to solve stoichiometry problems of several types (molar concentration, concentration of ions, mass percent, minimum volume needed & finding the mass of a precipitate). Although the video above is long, it is the exact same process learned last unit. You may wish to give students 2 days to review the video (ask them to review the first 3 examples on one day and the last 2 examples on the second day). However, little of the material is brand new.
Students should be asked to watch the above video at home (if they don't have access the video should be available for them to watch in class). Students will then come to class and divide themselves into their level of understanding (really understand, somewhat understand, don't understand and haven't watched video). The students will be given problems to solve in their groups (depending on their understanding) and the teacher can circulate and help the students.
Challenge questions should be provided to students who have mastered this material. Extra questions for basic understanding can be taken from the students' text book to help the group of students struggling, in addition to support from the teacher.
Practice Problems: Solution Stoichiometry
Curriculum Expectations:
2.1 Use appropriate terminology related to aqueous solutions and solubility
2.5 Write balanced net ionic equations to represent precipitation and neutralization reactions
2.6 Use stoichiometry to solve problems involving solutions and solubility
3.4 Identify, using a solubility table, the formation of precipitates in aqueous solutions